How We Could Survive On Mars - Feat. Andy Weir | Answers With Joe

[@simvalue]

"The internet hurt my feelings today" The exact moment I hit like

[@KinsmokeWill]

Yeah 45 seconds was all it took. Kinda makes you pity all the youtubers begging for likes at the start of their vids. Creativity is all it takes

[@Mscape7]

Same for me!!

[@Tvirus12]

Yes, his misery is our pleasure

[@ashzole]

So dramatic.....

[@lyledal]

Same!

[@Monkey-fv2km]

It's always great to meet your heroes. I expect Andy Weir was over the moon.

[@LisaBowers]

I see what you did there.

[@dogcarman]

Well done, madam or sir. Well done indeed.

[@joescott]

Okay, that's funny.

[@Voyager2525]

Hr was over Mars.

[@richardcollier1912]

We can be heroes. Just for one day.

[@paulcooper8818]

The Internet is a cruel mistress with a dark heart and no soul, that's why it's popular

[@fcgHenden]

I'd hit that

[@englishcoach7772]

Genius. Poe style.

[@StoneCoolds]

Nah its a cheap space for any moron no matter how usless and dumb he may be, can pretend to be some one important and smart

[@MrKago1]

@@StoneCoolds which is technically correct but more apt when describing Twitter. So the above description works for the internet in general, Twitter can be described as a cheap stripper who does private role play shows. Not as aesthetically pleasing sounding as Robert Frost up there, but still fairly accurate.

[@carlodave9]

Her popularity might have something to do with her 80085.

[@TheParasiteDk]

Andy at 2:19 "let's science the shit out of this". Great work Joe, love your videos.

[@JohnMichaelGodier]

Initially, while watching this, I wept in solidarity with Joe. Then I got some corn chips and an orange fanta and can't wait for the full interview! One of your best man :)

[@EventHorizonShow]

Corn chips sound really good right now.

[@JohnMichaelGodier]

@@EventHorizonShow Story of my life Rossy. Weeping and corn chips.

[@LynchGaming1999]

Aye I love your vids! Keep up the work both of you @JohnMichaelGodier @JoeScott

[@capitantomate9014]

A drink and a snack

[@uladzimirdarozka3882]

I can't believe I hadn't noticed this JMG comment under JS's video then. Anyway, I hope to pay more attention to the comments on KZbin existing in this universe in which we liiiiive. :D

[@nathancolgan4296]

Hey Joe, love the video. I'm in grad school studying nuclear power for space missions now and just wanted to chime in and say that a megawatt scale reactor that you'd need to power a human scale nuclear electric mission to Mars could basically fit inside a shipping container and weigh maybe 10 tons, look up DARPAs Megapower project. Also, uranium itself isn't very radioactive, it's the products that you get from splitting uranium that are very dangerous so if you're worried about launching a reactor to space, as long as you don't turn it on until you've reached orbit there's no real radiation danger from a crash. Also the probes like new horizons weren't powered by nuclear reactors but by radioisotope thermal generators, basically just a hunk of plutonium that gives off heat as it decays

[@737smartin]

A "thumbs up" was too little. Thanks for the GREAT reply.

[@kamenwaticlients]

Excellent reply. I suspect the most difficult aspect of the reactor is safe excess heat dissipation.

[@Minuz1]

"No real radiation danger from a crash" True There is however a real radiation danger from an explosions with uranium in it, wouldn't you say?

[@jdray]

@@Minuz1 : from what I understand (an armchair space researcher), the architecture of space-borne nuclear reactors is sufficiently different that "explosions" don't really happen. Note that they don't really happen here on Earth, either; they melt down, but don't explode. Using helium or sodium as a heat transfer fluid turns out to be better than water; helium escapes as a gas if there's a leak, and quickly rises to the top of the atmosphere (I'm unclear on whether or not it carries anything with it when it does), and sodium, lacking heat, quickly solidifies in the pipes and doesn't leak into our waterways.

[@nathancolgan4296]

@@Minuz1 not really, if you're thinking about a dirty bomb, again those typically use used fuel or something else with short half life isotopes in it, uranium has a half life of millions of years, which means it gives off radiation relatively slowly. And the amount in any of these reactors would be less than a ton, so unless it dispersed right on the launch pad as opposed to over the ocean there probably would be not much measurable effect. If it did blow up on the pad, the radiation would be measurable but not nearly dangerous

[@miguelsanchezcampo2762]

Hey Joe! Im pretty sure, i least i hope, that most of the comments on your videos are positive, cause i'll like to think that people is able to see all the effort and talent that you show in each video, as much as i do. Just wanted to let you know that i really like your work, and as a physicist, i don't think you are doing something wrong when you say something that may sound incorrect. On the contrary, i admire the fact that you have the fortitude to admit that you are not an expert, and that you just do this videos because you find some topics fascinating. Man, love your videos, with you since year 1 haha. Hope everything is working out for you. Keep the GREAT work my dude. From Colombia a big 5 five!

[@BothHands1]

as a physicist, i'm sure you could confirm this: the problem with using centrifugal force to create gravity, is that it would make you very nauseous. if, say, you throw a ball forward, the ball will actually curve quite drastically to one side, depending on which way you're spinning. the bigger your spinning habitat is, the smaller this effect, but even with mile wide habitats, the effect would still be noticeable. on any scale that he's speaking of, it would be severe. the laws of physics (rather, newtonian motion) would not function in a way that you're used to in a centrifugal gravity scenario. even just moving your foot forward to take a step, that foot would experience a perpendicular acceleration. this is something that has been known for decades, and were even critiques used when kubric made space odyssey 2001. it seems the general public, and even rocket scientists have forgotten about this problem over time. once you get used to the centrifugal gravity, you might have even more trouble walking than if you never had centrifugal gravity at all. over time, your body would correct for the perpendicular acceleration, and so you'd move your foot on a 45 degree angle to step forward, which once you're on the moon or mars, would make your walking completely incompatible with normal walking on a planetary body i made this post as a separate comment, but it seems to have been buried. hopefully a discussion of this will be more productive in this comment thread. thank you :

[@miguelsanchezcampo2762]

@@BothHands1 Hi Danielle. As you may know, the effect on your body (or anything really on the spaceship) its caused by the coriolis effect, that arises from the inertia of the object while it is spinning. The effect is, effectively, stronger as you are closer to tge center of rotation, because your body have less "room" to compensate for the apparent difference of "force" exerted along yourself. So, the solution to a possible atrophy of your muscular and motor systems might be to make a bigger module of rotation, or ring, that compensate for this lack of radius R, as obvious as it may sounds. A great example of this in fiction is the novel by arthur c clarke "rendezvous with rama" where the explorers of a giant rotating ship see the manifestation of the coriolis effect only i giant objects, like how the water on a waterfall bends as it falls down. And, as a last remark, you can think about sailors, where there body its constantly subject to shifts of force. As a result, as everybody knows, their motor system adjust to this, thus their peculiar way of walking once the arrive to shore. So, even though the effects are not due to the same type of forces, it might be common in the future to comment on the peculiar way that astronauts walk once they arrive to "shore"! Kind of cool, right? Anyways, i think to fully respond to your comment, someone with medical or physiological backround should jump into this tread, so they can correct any asumption i made in last part I hope that is the kind of discution you wanted to start, and that my answer satisfy your expectations.

[@BothHands1]

miguel sanchez yes, definitely, you seem to be quite familiar with the effect, and the workarounds. increasing the radius reduces the coriolis effect, but the radius needs to be quite significant. a rotating body a mile in diameter might be akin to a sailor gaining their sea legs, and walking strangely once they arrive on firm ground. but the rotating ship being discussed in this video likely has a much smaller diameter, and so i believe the significance of the effect would be far too severe to overcome or adjust to. if a person does manage to adjust to it over months, their "sea legs" on land would be hundreds of times more severe than the sea legs a sailor experiences, and so it might make them completely incapable of even standing upright. in this case, i feel that no gravity would make for a much shorter recovery time than a rotating ship with only 100-200 meters in diameter. but i very much like your "sea legs" analogy, and will likely be using it in the future, if that's ok with you if we were to launch a mile diameter rotating object, the costs would be exponentially larger than anything we've ever even considered up until this point. because of this, i think rotating ships are a concept that's much further away than the video let on. maybe hundreds or even a thousand years away, assuming we don't annihilate ourselves through war or conflict before that. if we're making a trip to alpha centauri, then yeah, maybe a rotating habitat would have merit. but on a trip to mars, it's absolutely not a viable solution. thanks for your reply, what do you think?

[@dogcarman]

And *that* kind of comments is the other reason I come here. 👍

[@BothHands1]

DogCarMan i'm glad to hear it :) hopefully we'll have more individuals in STEM fields give their input to further the conversation. my degree was in neuroscience, so my understanding of physics is quite rudimentary. but to become an interplanetary society, all sorts of STEM disciplines will be required.

[@Just_lift_anyone]

"This guy really hates Mars", you must admit that's a unique complaint!

[@tapio83]

More of a Twix guy anyway

[@Just_lift_anyone]

@@tapio83 Haha, nice one! :)

[@joescott]

It is a bit of a strange thing to accuse someone of.

[@Just_lift_anyone]

@@joescott It is a tad odd isn't it ?!

[@ashamahee]

Is he a marsist then?

[@ZUIDOVICIOUS69]

"Kinda complainy for someone who would never be asked to go" .. oof 😂😂😂😂 i felt that one for you joe.

[@davecasey4341]

I know. Some people are just downright mean.

[@Jaxvidstar]

Why not pay to go with commercial space instead waiting for a government programs to ask?

[@Sinistralitee]

i mean tbf, even If I would be offered the first seat to mars as one of the firsts, I would still decline, I ain't going near that planet till we're okay for it.

[@thedondeluxe6941]

"The internet hurt my feelings today." - Everyone, 2019

[@jamesleemuthafuckynsales4334]

aaaaand 2018, 2017, 2016... pretty much since Trump began running for office the amount of cry babies has been growing exponentially. #metoo #getoverit #firstworldproblems #trystarving

[@howardbeye2856]

Laughed out loud!! The internet will always hurt your feelings!! Loves me some 'answers with Joe' keep it up. Love your humour.

[@dreadreaper7123]

Pin tih pls!

[@maygen801]

"The Internet hurt my feelings today." Bahaha I laughed so hard.

[@fjooyou]

should be a T-shirt

[@brianbagnall3029]

In other words, his first video was a steaming pile of pseudo-science bullshit and the Internet took him to task for it.

[@BenjiSun]

"don't respond, house always wins." --internet

[@kamenwaticlients]

@@fjooyou I would buy it

[@IdleWorker]

Dammit I wanted to write this comment!

[@Amateur0Visionary]

Joe, I rarely laugh out loud, but that breakdown at Andy's door got me :) You do great work, sir, and this was a great video. Thanks Joe!

[@beakz]

Tim getting his Elon interview, Joe snagging Andy Weir! Who's Ben got lined up post baby?! lol Awesome as always, Joe! I remember how much I smiled when Andy replied to my tweet about Artemis, I could only imagine how excited you were to have a sit down with him.

[@Walk_on_Part_In_a_War]

Excuse my naivety about crazy-awesome-science-technology-communicator-dudes, I know Joe Scott (obviously), I know Tim Urban, but who's Ben?

[@Walk_on_Part_In_a_War]

@haresh hhp Thanks for enlightening me, I will go with my tail between my legs and check it out! I feel like a long-term classical music fan who's just heard that there's a guy called Mozart who wrote some good stuff.

[@Chyrre]

An interview with Scott Manly ofc

[@joescott]

Ben's got a baby about to pop any day now. Seems like a pretty big deal to me.

[@TheRedbeardpirate]

@@joescott it is. Not much is better! They (babies) don't have much to say though 😉

[@EventHorizonShow]

Answers with Joe and Andy is something we'd pay to see. So great to see the two of you together! Could probably watch that intro on a loop.

[@Zenedoboz]

"That's it, guys, this channel's done. Pack it up, we're good. I've peaked." - pure gold :D :D :D

[@vbbbobby9476]

zenedoboz wer q Aw

[@friendlyone2706]

There are always future peaks

[@geraltofrivia9167]

that opening prologue scene just like in the oceanfront property. :)

[@joescott]

I was paying homage to that director. He's a genius. 😉

[@Amateur0Visionary]

@@joescott very nice work, Joe. Well played.

[@thelaughingtiger5973]

Joe’s film background really showing itself in the beginning there

[@StanleyOrchard]

And acting

[@brainmind4070]

@@StanleyOrchard "And acting" ehh...

[@joescott]

It was fun.

[@owengameing6182]

@@joescott I agree; and might I suggest getting out of the office more often for your vids? Really nice to see you mix it up.

[@brainmind4070]

Joe Scott Alright, I feel a little bad you've probably read a bunch of my snarky, trollish comments. I loved the intro to this video, and you've got one of the best educational/informational channels on KZbin. You seem like a genuinely decent human being and someone who(m?) I wish much sucess upon for the rest of your days. Now if you'll excuse me, I need to get back to my smartass facade to protect myself from the potential pain of sincere human connection.

[@sirierieott5882]

The Chernobyl meme is popping up so much, it’s really catchy and hilarious. Not great, not terrible...

[@joescott]

It's very useful.

[@csweezey18]

@pianoboy That pun was abysmal, but you CAN do better! I believe in you!

[@kristinschiller1763]

Not only do I love the science in your videos, and I love your calm voice that makes it easy to watch your videos in the background while I do work, but also I love your humor. Just thought I’d let you know how wonderful your videos are to digest.

[@allanfifield8256]

Thanks!

[@bazoo513]

The most hilarious introduction to an interview!

[@ugotnojamss5215]

I legit discovered you a month ago, and i've already watch all of your videos. I watch you literally everyday. So I just want to thank you for this amazing content. Content that not only amplifies my knowledge but it also is incredibly entertaining :)

[@Gio-ym4uj]

Ok Joe, I forgive you. Through the internet... a complete stranger who never met you. Jokes aside, I love you and your content Joe, never stop making stuff. Xoxo

[@meridien52681]

15:19 "Hey, look, I got the right planet this time!"

[@tristabiddle8396]

How did you get it to tag the time slot? That's cool

[@Blafaselblubb]

@@tristabiddle8396 you just type the timeframe and youtube does the rest 22:00

[@evandotpro]

I just wanna say I'm absolutely loving the increase in cinematic style in your videos. Sets you apart from other educational youtubers in a big way.

[@WhitefoxSpace]

I find it enjoyable that most of the nasty comments in the intro don't know how to punctuate a sentence.

[@doburu4835]

Including , you, fuckhead!!!!

[@Fanrose2475]

At least they.... didn't.....type ...LIKE....this...

[@differenceandrepetition]

@@doburu4835 Woah, slow down there cowboy

[@Monkey-fv2km]

Criticisms using poor grammar don't even count...

[@Fanrose2475]

@@stumpyplank6092 but...why.... you're... Just.... dragging..... on the..... sentence

OMG can't wait for the full length interview video!

[@737smartin]

My favorite: "Rest of the World Cam." Nice. 👍

[@fredglaeser9199]

Elon Musk says he wants to die on Mars. That looks like the easy part.

[@bekr3473]

6-12 months of food and water, then just slam that rocket in the regolith.

[@Prof.Megamind.thinks.about.it.]

Mr. Fred , That definitely would be easier than completing a successful mission to the Red Planet (just ask Val Kilmer) ..😁 Seriously though , the radiation issue is an enormous stumbling-block in the path to achieving that goal . The on-planet exposure is lesser , and can be easily mitigated by living in caves , or covering with regolith . In-transit exposure is far greater , and requires a multitude of technologies , in order to prevent cancer/retardation/or heart-attacks . .😎 *To examine such technologies , read my Quora Post : "How difficult is it to generate a magnetic-field around a starship , to protect against radiation just like our planet does ?" .

[@alexanders.1359]

Could be difficult. More likely is dying on the way there

[@pwb83]

He just has to reach there alive 😅

[@JoshuaTootell]

3 years later, that was definitely a better mountain to die on

[@arashy9761]

Thank you so much for this Joe....to me, this meant something way beyond mission to Mars...it showed me the difference between "logical pessimism" and "reasonable optimism". I watched the first video and I said to myself "yeah, our bodies are not designed for space travel...makes sense". But then I watched this one..and I'm so glad I did. It all depends on how you look at life!

[@RasperHelpdesk]

Hmmm, a centralized ion drive with two parts sticking out, rotating. Sounds like a scaled up Vader's TIE fighter at the end of New Hope ;)

[@jlmahurin4962]

kzbin.info/www/bejne/Z4ezl42Vjd-cqbc

[@Skylancer727]

Still say nuclear rockets are better though as they have a specific impulse about 3 times higher than ion drives, plus the reactor can double as the power supply for the rocket and even be used after landing for reserve power.

[@HipsterYoda]

You've reached a higher level of interesting content, we congratulate you

[@mikeyoung9810]

Between the folks that kiss up to streamers and the ones that nitpick everything while being critical and holy remains the rest of us. The other 99% that just watch and enjoy and think about the video. It might be good to ignore that 1% of phony and angry.

[@christianzupp]

Well said. Some commenters here would like to start an hours-long discussion about every detail of mars travel, but that is not the point of this channel.

[@joescott]

There is definitely a vocal minority that are compelled to nitpick absolutely everything to death. I guess it feeds their ego in some way, but man, that sounds exhausting.

[@jellymop]

Joe Scott you nailed it Joe.

[@stevenutter3614]

That's why it's important to leave a comment even if it's just, "that was interesting thanks".

[@stevenutter3614]

@@joescott Don't forget the vocal minority pay via ads to watch the videos as well so jokes on them. The longer they spend writing a comment the better youtube ranks your video correct?

[@crabapple1974]

Really appreciate your humble attitude and effort to be objective and how you incorporate new information. That is how you learn and evolve your knowledge. The reason I come back to this channel.

[@Pantherboss-ue6ue]

"The internet hurt my feelings today" Why would they do this?

[@He2raww]

lol how could they??

[@zeitgeist909]

I wish I could like this twice! - love these skits your doin' Joe! Keep it up dude!!

[@quantumquestthebillionaire1527]

You can?

[@zeitgeist909]

@@quantumquestthebillionaire1527 how? You can keep clicking the thumbs up but it just toggles one like on and off over and over?

[@LisaBowers]

I loved, *loved,* *LOVED* this video! Joe Scott _and_ one of my favorite authors? I feel like I'm ready to go out and conquer the world! *Maybe even Mars.* Ok, I _might_ be getting ahead of myself.

[@WhereisRoadster]

Very few spacecraft have actually used a nuclear reactors. There is a subset called an RTG that is fairly common, but they aren't that useful for the huge amounts of power that are required. Actually an idea that you discussed previously, a Thorium Liquid-Salt Reactor, could be the answer to efficient use of nuclear power on Mars and in space, and quite safe.

[@ReddwarfIV]

Pedantic point: RTGs aren't reactors, since they don't split atoms. All they do is use thermocouples to make use of the heat generated by a material naturally decaying.

[@WhereisRoadster]

@@ReddwarfIV That's the point I was trying to communicate. Subset of nuclear is what I intended to say. There has been a few true reactors in space, none in the last 40-50 years, and most of them Soviet designed.

[@ReddwarfIV]

​@@WhereisRoadster I was trying to make a true but trivial statement, but if I said something helpful, that's good too.

[@CARBON10]

Roadster Tracker -Ben Pearson Doesn’t sound safe. Thorium liquid salty thing

[@theharper1]

Thanks for this. I was going to say that an RTG is more like a nuclear battery than a reactor.

[@cjmahar7595]

The same thing we tell friends that were hurt by someone applies to you here. I think all your videos tell the truth and "if they don't like it then you don't need them" . Basically please don't sacrifice the integrity of your channel for viewers. I love your content. Keep up the good work!

[@BugRib]

The first two and a half minutes of this were incredible. The rest was pretty good, too.

[@jammadamma]

Andy Weir - what a scoop! Congrats, Joe!

[@StanleyOrchard]

Ah, Joe. That sincerely tugged at my heartstrings. Sorry you gotta suffer through comments like that and thank you for taking such a wonderfully humorous approach to them. You are an inspiration sir!

[@joescott]

Hehe, awe, I'm okay. If you can survive the comments on climate change videos, you can survive anything.

[@kamenwaticlients]

Though they can be too harsh at times they are still a good thing. After all look what came of it. More knowledge and a great interview. Totally worth it.

[@StanleyOrchard]

@@kamenwaticlients cant disagree with that

[@timblizzard4226]

Best intro ever!!!! The internet has hurt my feeling before Joe, I know your pain my friend.

[@hamptonkortjohn1580]

Joe, great job on showing both sides, the most optimistic and most pessimistic. Thank you!,

[@desireeespinosa3954]

We appreciate you Joe! And it’s not your fault that some people want to remain ignorant. The rest of us watch to learn. I love that you always include “the catch”. That’s why I watch.

[@Galerak1]

"Rest of the world cam" hahaha loved that xD athough you should have said "...or 1.6km" ;) Love the videos

[@jdray]

Thanks for this video. I'm looking forward to watching the whole interview. Have you read Kim Stanley Robinson's "Mars Trilogy" (Red Mars, Green Mars, Blue Mars)? At the time, NASA scientists, who were formerly Robinson's co-workers, said that Red Mars was pretty much a blueprint for how you colonized Mars. We've learned a lot since that was written, but it has a lot of useful ideas in it. Also by Robinson, "2312" is set in the same "universe" as the Mars Trilogy, though is set later and the stories barely interact. From it, we get ideas about hollowing out asteroids and using them as ferries. It's not a new idea, but he digs into some of the details. Also of note, Robinson has made himself available for a number of interviews. Maybe put him on your list.

[@STR82DVD]

Best one yet Joe! I pretty much pissed myself laughing with the first three minutes.

[@kennethde1605]

Haha, i'm new and i already fell in love with this guy XD He's awesome, polite, sarcastic, funny and the best of all, with sense of humour

[@9Achaemenid]

Good you clear out the uncertainty about your last video regarding Mars. I did not know artificial gravity is possible to achieve in the nearest future and that Mars soil is durable enough to grow food from. Good work Joe Scott, thanks for putting effort traveling and interviewing Andy!

[@qetoun]

by a mile (turns to Camera B) ...or kilometer. kills me :-0

[@linbat6148]

Great interview, Joe! Now I wish you could interview Ben Rich from Skunkworks. Yeah, I know he's dead. OMGosh, wait - I didn't mean I wish you were d.... no, no, don't cry again!!! I just meant I wish we could understand what he meant when he said we've already learned how to take E.T. home! Please, stop crying! I just mean IF we could talk with him we could understand how they did this without using our current means of technology and physics as we understand them and bypass all of the problems we face as listed on your video. Really - I didn't mean anything personal! I love you, Joe! Awwwe - I'm sorry! Don't cry...…………………….you did good!

[@BnORailFan]

And Joe has Andy's Artemis book in the background.

[@kimrick8560]

which was one of my favorite DNF novels... ridiculous

[@tanmoybanerjee6275]

I respect you because you didn't clickbait the thumbnail of this video, you could have done that clearly as you brought in Andy.

[@saumyacow4435]

I was half expecting this to be about surviving in the context of colonisation. I'm very glad that's not the case. It's simply about surviving realistic and limited (in time) exploration missions. Good stuff.

[@UncleWermus]

"Radioactive Shrapnel" *METAL.*

[@johncragg6672]

Good name for a band.

[@TheAmericanAmerican]

🤘😝🤘

[@bandaid007jl]

only the best kind 👌

[@TheAmericanAmerican]

@@bandaid007jl Right? Like Germany's best, Rammstein! Their new single "Deutschland" is epic! I especially love the part in the music video where they blow the faces off the Nazis at point blank! So damn satisfying! 🤘😆🤘

[@joaodecarvalho7012]

"Imagine if we solve cancer just so we [20 people] can go to Mars."

[@nicf1555]

That could be Blue origin's pitch

[@andrasbiro3007]

Well, Elon Musk wants 1 million people on Mars in just decades. His ships will carry 100 passenger or 100-150 tons of cargo each, and there will be an entire fleet of them. And if cancer gets in his way, that's the end of cancer probably.

[@soldieroftheark9613]

@@andrasbiro3007 idk what is more disturbing the fact that we are actually building mars launch hardware. or that Elon might cure cancer just to justify said mars hardware. either way im on fucking board.

[@joaodecarvalho7012]

​@@andrasbiro3007 Well, one million people is not enough to make a space company develop a cure for cancer. There are a lot of biotech companies working on this problem, and they target a much larger market on Earth.

[@scottcampbell7944]

We can already beat cancer. No one likes the cure though nutritionfacts.org/video/how-not-to-die-from-cancer/

[@matrick1356]

Elon doesn’t even know you exist but at least you have andy! Shoutout to those who got the reference from olf

[@vedantchaudhari7123]

i got the reference xD

[@rafqueraf]

The Tesla car have a Joe mode.. ba dum tss

[@rdavrin]

Hi Joe first of all, love your videos. "How do we have this constant acceleration (with Ion drives or Vasimi), while constantly spinning". Well the answer is quite simple, ditch the spinning part. The constant acceleration from the Ion/Vasimr drive will itself provide artificial gravity. True it may not be 0.4g or 1g, but a big enough Ion/Vasimr drive may provide us with a usable amount of artificial gravity due to acceleration. And once you cross the 1/2 way point, flip the ship around and start decelerating with the same amount of artificial gravity. This method can provide us with artificial gravity from Earth to Mars and back because the ship is always accelerating/decelerating. And the amount of Gs on the ship will only get bigger as technology improves, with the added benefit of reducing the number of months traveling from Earth to Mars. We may even look into the possibility of a long burning SpaceX Mini-Draco thruster or another small engine that uses a small amount of fuel, to provide constant acceleration to a Mars ship

[@herbertcrawford9634]

Joe you're a true scientist. I appreciate anyone that reconsiders their viewpoints based off of new data and/or valid criticism.

[@chevy87blue1]

Dude you can't start the episode without spinning in your chair!!

[@davidraley3239]

And bongos

[@ThrottleKitty]

"You will get to widen that data set... _With your body."_

[@andrewakrause]

12:10 Andy Weir does the one-cheek sneak. Yeah... I watched the whole video, and that's what I chose to comment on.

[@antonkovalenko364]

You can't accomplish a feat that massive without not only asking, but also answering the hard questions.

[@akhilez]

The first few minutes of this video are GOLD!

[@agatainventio9464]

This is my fav science channel on KZbin you’re doing great work and I love your storytelling 👌 it’s somehow awkward but not cringe haha

[@bpancevski]

Wow, watching that intro i thought Marvel had recast Dr.Strange for a sec

[@Lightning9060]

"The internet hurt my feelings today" First time?

[@tomboyd7109]

The thing about cataracts is that it is is one of those things that medicine has down pat. 10 minutes for the core of the actual procedure. You can see well instantly. It adjusts near/far sightedness while you're at it. 2 weeks until they can do the other eye. Been there done that. It just works. I wish all medicine worked that well.

[@daverichards4487]

You spoke about the possibility of using robots to do outside work, thus obviating the necessity if leaving the safety of the "cocoon". I can think of few things that have more potential for driving a person crazy than extended confinement such as you describe. We give people on death row one hour a day outside, recognizing that to do less would be needlessly cruel.

[@TraditionalAnglican]

There’s a huge difference between living alone in a 3 x 2 x 2.5 meter cell & with 35-47 other people in a total of 2,250 m3 (30 x 30 x 2.5 meters) of habitable space. The death row inmate has less than 1/3 of the space someone going to Mars would have.

[@ThinWhiteAxe]

Production values in intro -> 👍 Also that shirt is cool.

[@Reth_Hard]

Joe: "Spending billions just to take a walk on Mars? Maybe we should focus more on solving problems here on our planet..." Subs: "I'm about to end this man's whole career."

[@griffinbailey7423]

Sid Stevens ok boomer

[@sponge1234ify]

@ The entire European history: That's cute

[@alexanders.1359]

The whole multi-planet civilization plan is founded on the idea that we won't be able to solve the problems on earth

[@racingfortheson]

I literally laughed out loud because of the start

[@Desyx14]

Joe, how in the hell do you have less than a million subscribers? How does this video only have 14k likes? You're genuinely one of my favorite youtubers. I listen to old videos I've watched before in the background while I play games

[@AndrewBlucher]

Hitchhikers Guide to the Galaxy: Technology! Some people say coming down from the trees was a bad idea. By the way Joe, as a Mars fan ... I really liked the first video. We don't solve problems by listening to one side of the story. We solve problems by answering hard questions.

[@MonasteryK]

Here is some love from the internet for you, Joe:

[@AndrewBlucher]

No, that's just a spelling mistake.

[@TheHimmus]

"Rest of the world cam". This got a good laugh out of me.

[@karlhauser893]

A wise man once said, "Let the hate flow through you." His adopted son grew up to rule the galaxy.

[@popularopinion1]

Kudos to you Joe for following up and owning that you were off on a few details in your last video. Well Done!

[@casapeter]

11:08 that is quite a set up you got there Joe.... x 2 wow

[@floppyseizure8615]

12:29 Joe looks to the side, contemplating his life and where to go from here. Haha.

[@milrevko]

Teach them who’s is the boss, Joe. ” hurt the Internets feelings”

[@menix83]

Hilarious man!!! That's priceless. I read your comment and laughed for a good ten seconds.

[@milrevko]

Alex Padilla About 20 years ago I Reformatted a hard drive and it just didn’t work right one of the attorneys from my office walked by and said “reformat it again teach that hard drive who’s boss” and that’s where it came from

[@tomrobertson3236]

Sending 2 starships at a time will a cable between them allowing them to spin

[@wylnd]

There was a good design with three. One in the middle connectin the two outer ships

[@wastedtalent1625]

Smallstars has a video on that exact idea, you should check it out

[@jlmahurin4962]

Which means you have a cable holding the earth mass of two objects each weighing tons ... plus no control BOB.

[@wylnd]

@@jlmahurin4962 Not a cable, a rigid structure

[@tomrobertson3236]

A rigid structure could be reused making the cost negligible

[@lizarnold87]

We haven't even been back to the moon.....so your comments on Mar's make a lot of sense...Gooooo. Joe

[@bdtuttle]

Dude, I love your videos and the fact you did one like this. Rock on.

[@macberry4048]

Joe's acting skills have really improved. I really felt his pain and anguish

[@SufficientDaikon]

I thought this was a lets play of the paradox game "Surviving Mars" i still liked the video tho.

[@jimalbi]

Correction about perchlorates: It was discovered by Mars Polar Lander instead of Curiosity.

[@johnlennox2029]

After watching this video (and the long interview with Andy weir) I decided to buy the Martian and I cannot stop reading it! Fantastic book! :)

[@grumpyaustralian6631]

Theres a fine line between things we can do now and things we might be able to achieve someday, Andrew Weir is a good author but tends to do mental gymnastics to incorporate (cool tech/clark tech) like the non sphericle rotating space habitat on a beam outside of earths influence idea thats miles ahead of our capabilities and would seem to be way too risky for any realife space agency to try because the structural integrity of space craft has to be incredibly high due to the chance of impacts, despite the probability of an impact inbetween earth and mars being relatively low. Since the spacecraft needs to rotate quite rapidly to generate close to 1G if an impact happens on the way to mars you could end up with both ends shooting off in opposite directions at quite high speed (like a giant space trebuchet) causing them to miss their trajectory entirely as the centrifugal forces become acceleration once seperated, this affect would also amplified if the impact doesn't hit the middle leaving one side with less mass than the other stranding you in space. People tend to latch on to centrifugal artificial gravity on all space habitats without considering that a space station stays on the same orbit where it can potentially clear a path/avoid known debris as it goes arround, a spaceship to mars is traversing more or less uncharted space and therefore has to be as structurally sound as possible just incase and although you could potentially laser clean your path of debris that technology isn't currently available. As for radiation, although i dont disagree with Andy's curing cancer solution for space travel but, again it is not an option right now at all, and may never be an option as radiation literally rips up our dna inevitably causing many mutations that eventually lead to nonfuctional cells that reproduce uncontrollably by sheer chance of mutation, its just more(cool tech/clark tech) that would be nice to have but by all current limitations and understanding is impossible, bringing an extra small nuclear power plant to run a ship encompassing electromagnetic feild for 9 months however IS within our current capabilities and could even be used to shield the first inhabitants while they set up habitats on the surface of mars. Again, Andrew weir is good author, just alot more influence from Arthur C. Clarke and Isaac Asimovs science fiction novels instead of actual science, "the egg" is a great read if anyone actually read this far down my post😅

[@tagair211]

OMG, you killed me laughing 😂😂😂😂😂 That was a great video. I'm looking forward to tomorrow's video

[@SG-xi5dx]

And the KZbin Oscar for Best Dramatic entry goes to -- > Joe , 😂 and the KZbin Oscar for best suporting charakter goes to --> Andy 😄 Verry good video (as usual) ☺ With regards to upcomig videos, nuclear propulsion, very good. BUT, could you do something about Orbits of spacecrafts in the Solarsystem? Because you talked about the Hohmann transfer and it is kind of state of the art for Orbits for Planet to Planet...and everynody seems to take it as a given. BUT i dont think its the only possible Orbit type or way to travel in space and i think the New horizons Probe did a diffrent one to fly far out(?). And Elon said something to Andy Dott during there recent interview about going faster but requiring exponential more energy....(?), what kind of orbit would that be? During university I read about: "Visiting orbits" and "RAL Orbits"...perhaps there is even more!?!?....would be great if you could have a look into it!!! ( in the ususal quality, with some drama perhaps😆). Cheers

[@eaboatnuts76]

Did he say, we'll science the $#-t out of it? Rock on Garth!

[@estudiordl]

That intro man. That's why I subscribed.

[@nicolaslanglais]

Genius. Loved the intro. Watched it several times and liked the video. Love it

[@Degenpups]

I love that you can use your fame to interview those big names 😁

[@Dozer_DT]

Why don’t they like me man?! Haha I love you Joe you the best

[@p0xus]

16:56 Hillarious Chernobyl reference.

[@eddycerb]

Love the production Joe really enjoyed the video, very entertaining

[@piperjofox]

I enjoy your little theatrical clips in the beginnings of videos sometimes so much